Year	Number
1995	8.850559437225662
1996	3.2433853586106136
1997	4.422346576014706
1998	7.853922708541526
1999	2.8610149085361325
2000	1.3166653896482108
2001	2.5806685699863254
2002	6.532675029165793
2003	3.7940834453785426
2004	2.313852225833987
2005	1.5380958468387171
2006	1.0460242402870927
2007	1.1918529258167925
2008	1.5617656740712105
2009	2.346720864315315
2010	1.4808456074201517
2011	1.446121934516897
2012	1.2951562852504181
2013	1.4003025705852936
2014	1.794402617851241
2015	1.5574865588592703
2016	0.8728666564808218
2017	1.3587998798940177
2018	1.5800238439966008
2019	1.4623615407464758
2020	1.4101412923377175
2021	1.188834704945478
2022	1.6637468174556056
2023	1.535310209504506